SCTP is not documented in reference/example.confs

[Mikaela]

I have copy-pasted these notes about it on 15th of January, but it would be nice to have them properly documented/formatted in the config filse

17:57:49 <amdj> Mikaela: not documented at the moment; "allow_sctp" in auth::flags, "sctp" in connect::flags, sctp_port= in listen{} (address(es) required, unlike for TCP which assumes 0.0.0.0/:: without one)
17:58:15 <amdj> YMMV.
17:59:08 <amdj> many firewalls are not SCTP/DCCP/other-L4-proto aware, so don't be surprised if it doesn't work at all.
18:02:10 <amdj> (especially if it's behind a NAT)